Bad PSU Cables?

[Mccluvinn]

So a while ago i turned off my PC(which i don't do much as i usually just put it to sleep instead) because a storm was rolling in and when i came back it wouldn't turn on even though it seemed to be getting power since the LED was on. Well i read up and it seemed to be pointing to a PSU problem but i had to leave so i came back to it later in the day. When i got back i decided to try it one last time and it worked so i held off RMAing it unless it ends up happening again, well it started happening last Thursday so i RMAed it and put in another PSU until i get the advanced RMA here Wednesday. i used a Corsair CX600M and everything was fine and worked perfectly, i kept turning the PC off instead of to sleep for a while to make sure it wasn't something else and everything was fine. Well i got my replacement here and shipped mine out and everything was fine, but last night i turned off the PC since i got into that habit and this morning it did the same thing as the last one did. Could it be one of the PSU Cables?

 

Specs:

MB - EVGA Z170 FTW

CPU - i7 6700k

PSU - EVGA SuperNova 850

Temp PSU - Corsair CX600M

GPU - EVGA 980ti Classified

RAM - Kingston Fury 16gb

Case - NZXT H440

[DennisTechTips]

Have you made sure that it isn't also your ram? And shouldn't you have gotten new cables with the psu?

[Mccluvinn]

i tested the PSU (and the cables) in a totally different build and it did the same thing, as for new cables when you RMA a PSU they don't send you new cables only the actual PSU (at least with EVGA).